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Hendersonite

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Formula:
(Ca,Sr)
 
1.3
V
 
6
O
 
16
 · 6H
 
2
O
System:OrthorhombicHardness:2½
Member of:Hewettite Group
This page provides mineralogical data about Hendersonite.

Classification of Hendersonite

IMA status:Approved
Strunz 8th edition ID:4/G.12-30
Nickel-Strunz 10th (pending) edition ID:4.HG.50

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
H : V[5,6] Vanadates
G : Unclassified V oxides
Dana 8th edition ID:47.3.1.4

47 : VANADIUM OXYSALTS
3 : Hydrated Normal Vanadium Oxysalts
Hey's CIM Ref.:21.2.6

21 : Vanadates (and vanadates with arsenate or phosphate)
2 : Vanadates of Mg, Ca, Sr or Ba
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Type Occurrence of Hendersonite

Co-type Localities:J J Mine, Paradox Valley, Uravan District, Montrose Co., Colorado, USA
Nelson Point mine, Eastside mines, Shiprock District, San Juan Co., New Mexico, USA
Year of Discovery:1962

Physical Properties of Hendersonite

Hardness (Mohs):2½

Crystallography of Hendersonite

Crystal System:Orthorhombic
Cell Parameters:a = 12.4Å, b = 18.92Å, c = 10.77Å
Ratio:a:b:c = 0.655 : 1 : 0.569
Unit Cell Volume:V 2,526.73 ų (Calculated from Unit Cell)

Optical Data of Hendersonite

Type:Biaxial (-)
RI values: nα = 2.000 nβ = 2.100 nγ = 2.100
Maximum Birefringence:δ = 0.100

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:relatively weak

Chemical Properties of Hendersonite

Formula:
(Ca,Sr)
 
1.3
V
 
6
O
 
16
 · 6H
 
2
O
Essential elements:Ca, H, O, V
All elements listed in formula:Ca, H, O, Sr, V

Relationship of Hendersonite to other Species

Member of:Hewettite Group
Other Members of Group:

- +
Barnesite
(Na,Ca)V
 
6
O
 
16
 · 3H
 
2
O
Grantsite
(Na,Ca)V
 
6
O
 
16
 · 4H
 
2
O
Hewettite
CaV
 
6
O
 
16
 · 9H
 
2
O
Metahewettite
CaV
 
6
O
 
16
 · 3H
 
2
O
Related Minerals - Nickel-Strunz Grouping):

- +
4.HG.05Fervanite
Fe
3+
4
V
5+
4
O
 
16
 · 5H
 
2
O
4.HG.10Huemulite
Na
 
4
Mg(V
 
10
O
 
28
) · 24H
 
2
O
4.HG.15Vanalite
NaAl
 
8
V
 
10
O
 
38
 · 30H
 
2
O
4.HG.20Simplotite
CaV
4+
4
O
 
9
 · 5H
 
2
O
4.HG.25Vanoxite
V
4+
4
V
5+
2
O
 
13
 · 8H
 
2
O
4.HG.30Navajoite
Fe
3+
 
V
5+
9
O
 
24
 · 12H
 
2
O
4.HG.35Delrioite
CaSr(V
 
2
O
 
6
)(OH)
 
2
 · 3H
 
2
O
4.HG.40Metadelrioite
CaSr(V
 
2
O
 
6
)(OH)
 
2
4.HG.45Barnesite
(Na,Ca)V
 
6
O
 
16
 · 3H
 
2
O
4.HG.55Grantsite
(Na,Ca)V
 
6
O
 
16
 · 4H
 
2
O
4.HG.60Lenoblite
V
4+
2
O
 
4
 · 2H
 
2
O
4.HG.65Satpaevite
Al
 
12
V
4+
2
V
5+
6
O
 
37
 · 30H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
21.2.1Metarossite
Ca(V
 
2
O
 
6
) · 2H
 
2
O
21.2.2Rossite
Ca(V
 
2
O
 
6
) · 4H
 
2
O
21.2.3Metahewettite
CaV
 
6
O
 
16
 · 3H
 
2
O
21.2.4Hewettite
CaV
 
6
O
 
16
 · 9H
 
2
O
21.2.5Pintadoite
Ca
 
2
(V
 
2
O
 
7
) · 9H
 
2
O
21.2.7Fernandinite
(Ca,K)(V
5+
 
,V
4+
 
,Fe
2+
 
)
 
8
O
 
20
 · 10H
 
2
O
21.2.8Pascoite
Ca
 
3
(V
 
10
O
 
28
) · 17H
 
2
O
21.2.9Sherwoodite
Ca
 
4.5
(AlV
4+
2
V
5+
12
O
 
40
) · 28H
 
2
O
21.2.10Melanovanadite
Ca
 
2
(V
5+
 
,V
4+
 
)
 
4
O
 
10
 · 5H
 
2
O
21.2.11Grantsite
(Na,Ca)V
 
6
O
 
16
 · 4H
 
2
O
21.2.12Hummerite
K
 
2
Mg
 
2
(V
 
10
O
 
28
) · 16H
 
2
O
21.2.13Metadelrioite
CaSr(V
 
2
O
 
6
)(OH)
 
2
21.2.14Delrioite
CaSr(V
 
2
O
 
6
)(OH)
 
2
 · 3H
 
2
O
21.2.15Straczekite
(Ca,K,Ba)(V
5+
 
,V
4+
 
)
 
8
O
 
20
 · 3H
 
2
O
21.2.16Gamagarite
Ba
 
2
(Fe
3+
 
,Mn
3+
 
)(VO
 
4
)
 
2
(OH)

Other Names for Hendersonite

Other Languages:
German:Hendersonit
Spanish:Hendersonita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Hendersonite

Reference List:

- +
American Mineralogist: 47: 1252-1272.

American Mineralogist: 75: 508-521.

Internet Links for Hendersonite

Search Engines:
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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Hendersonite details from Handbook of Mineralogy (PDF)
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    • Localities for Hendersonite

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    USA
     
    • Colorado
      • Montrose Co.
        • Uravan District
          • Paradox Valley
    		Minerals of Colorado 2nd ed.
      • San Miguel Co.
        • Uravan District
    		Minerals of Colorado (1997) Eckels, E. B.
    • New Mexico
      • San Juan Co.
        • Shiprock District
          • Eastside mines
    		NMBGMR Open-file Report - 466
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